CatColony: Cat & TNR Tracker

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Everyone
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Everyone
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About this app

CatColony helps TNR (Trap-Neuter-Return) volunteers and colony caretakers keep track of every cat they look after — and lets casual cat-watchers log the strays they see around the neighborhood.

WHAT IT DOES
• Track each cat: photo, name, sex, age, coat and markings
• Record ear-tip status with your clinic's left- or right-ear convention
• Log spay/neuter status and dates, microchip IDs and vaccination due dates
• Keep a full medical history per cat — vaccines, surgeries, treatments, vet, cost
• Add behavior and health observations over time
• Group cats into colonies with location, feeder and establishment date
• Log feeding: wet/dry amounts, water refills, who fed and when
• Run trapping campaigns with a step-by-step event timeline
• See colony stats: ear-tip %, spay %, vaccination status and feeding cost
• Export a cat's medical history as a PDF to bring to the vet
• Get reminders when a cat is due for vaccination
• Share a colony with other feeders using an invite code

TWO WAYS TO USE IT
• Managed colony mode — full tracking for TNR caretakers and multi-cat owners
• Neighborhood cats mode — a simple way to log strays you spot, with unlimited cats

WHO IT'S FOR
• TNR volunteers and feral-cat colony caretakers
• Animal rescue and community cat groups
• Anyone feeding or watching neighborhood cats
• Multi-cat households

YOUR DATA STAYS WITH YOU
Your cats, colonies and logs are stored on your device. Anonymous crash and usage diagnostics help us fix bugs. You can review the privacy policy any time in Settings.

CatColony is a personal record-keeping tool. It does not diagnose animal health — always consult a licensed veterinarian for medical decisions.

Contact: support@clearstackapps.com
Updated on
Jun 5, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

What’s new

Bug fixes and performance improvements